Hi there,
So sorry for what your experiencing. I too, tried to help my AH who was an addict in active addiction. NEVER EVER TRY TO SAVE AN ADDICT. I shouldn't have, but I was too naive and knew little about drugs and addiction. He dragged me with him. He manipulated me, used me financially, lied about his relapse and ended up dead. You can't save him. RUN for the hills NOW. You can't do anything for him. He has to do the work. However he doesn't seem willing to. Don't let him hurt you and your son like my AH did. SAVE YOURSELF while you still can.
Hugs,
SoDev